Gaze-Based Interface Object Placement with Input Confirmation
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Solution Overview
Problem
Conventional electronic devices rely on input mechanisms like keyboards and touch-screens for user interaction, which can be inefficient and unnatural, and existing gaze-based interfaces struggle with precision and stability in selecting and positioning objects.
Innovation Solution
Utilizing eye gaze and gestures for interaction, allowing users to select and manipulate objects through gaze direction and depth determination, combined with confirming actions to enhance precision and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional input mechanisms (keyboards, touch-screens) are used for user interaction, then device operation is reliable and precise, but the interaction becomes inefficient and unnatural
Solution Approach 1:
The patent replaces mechanical input mechanisms (keyboards, touch-screens) with a gaze-based interface that uses eye tracking technology. The system detects gaze direction and depth through optical sensors and algorithms, substituting physical interaction with visual attention-based control. This allows users to interact with devices through natural eye movements rather than mechanical inputs, improving both efficiency and naturalness of interaction.
2Ease of operation
If gaze-based interface is used for selecting objects, then interaction becomes more natural, but precision and stability in selecting objects deteriorates
Solution Approach 1:
The patent introduces an intermediary mechanism between gaze detection and object selection. Instead of directly selecting objects based on raw gaze data, the system uses gaze to indicate interest or intent, then requires a secondary confirmation action (such as a blink, head movement, or hand gesture) to finalize the selection. This intermediary step filters out accidental selections and improves precision while maintaining the naturalness of the initial gaze-based interaction.
Solution Approach 2:
The system provides visual feedback to indicate when an object is currently selected or highlighted by gaze. This feedback loop allows users to monitor their gaze-based selections in real-time and make corrections if needed, thereby improving precision. The feedback mechanism includes highlighting target objects, displaying selection indicators, and providing auditory or haptic confirmation when selections are finalized.
3Measurement precision
If gaze depth determination is implemented for 3D environments, then object manipulation precision improves, but system complexity increases
Solution Approach 1:
The patent extends the gaze-based interface from 2D screen coordinates to 3D spatial coordinates by incorporating gaze depth determination. The system uses stereoscopic vision, focus accommodation, or time-of-flight measurements to estimate the depth of the user's gaze, enabling precise selection and manipulation of objects in three-dimensional virtual or augmented reality environments. This adds a depth dimension to the interaction model, improving manipulation precision while managing complexity through specialized algorithms for depth estimation.
Data Source
AI summary
In an exemplary process for interacting with user interface objects using an eye gaze, a placement point for a selected object is designated at a first position based on a gaze position. In response to a user input, the placement point is moved to a second position that is not based on the gaze position, and the object is placed at the second position.